J.D. MARTINEZ Autographed Boston Red Sox Authentic White Jersey - STEINER SPORTS AUTHENTICATED This authentic jersey is signed by Red Sox Outfielder JD Martinez. Martinez is making a name for himself in Fenway after being a key off-season addition showcasing his extraordinary power to all fields. The signature on this item has been authenticated by Steiner Sports and features a uniquely numbered tamper proof hologram which can be verified in our online database. This process ensures your item is authentic and prevents duplication and fraud. MONEY BACK GUARANTEE! If for any reason you are not completely satisfied with the quality or authenticity of your purchase, we will gladly give you a full refund or exchange, whichever you prefer up to 30 days after purchase. Please feel free to e-mail us with any questions. Thank you. Authenticator Pre-Certified Authenticator: Steiner Sports Authenticated History of item: Martinez has signed this item in the presence of a representative from Steiner Sports. Describe how you came to possess this item: Super Sports Center is a fully authorized dealer for Upper Deck Authenticated as well as Mounted Memories and Steiner Sports. Other information about you and / or the item: Super Sports Center strives to deliver the most authentic in sports memorabilia from trusted companies like Mounted Memories, Steiner Sports and Upper Deck Authenticated. If it exists, we can find it for you!